package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApReadBehaviorService;
import com.heima.common.constants.article.HotArticleConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.ReadBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApReadBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.NewBehaviorDTO;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;
import org.springframework.stereotype.Service;

import java.util.Date;

@Service
@Slf4j
public class ApReadBehaviorServiceImpl implements ApReadBehaviorService {

    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;

    @Autowired
    MongoTemplate mongoTemplate;

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Override
    public ResponseResult readBehavior(ReadBehaviorDTO dto) {
        //1. 校验参数 文章id必须传
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null) {
            user = new ApUser();
        }
        //2. 根据登录用户id 或 设备id查询行为实体数据(阅读操作可不登录)
        ApBehaviorEntry behaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
        //3. 判断阅读行为是否存在
        ApReadBehavior apReadBehavior = mongoTemplate.findOne(Query.query(Criteria.where("entryId")
                .is(behaviorEntry.getId())
                .and("articleId")
                .is(dto.getArticleId())), ApReadBehavior.class);
        //4. 存在  将阅读行为的count字段加1 并修改
        if (apReadBehavior != null) {
            mongoTemplate.updateFirst(
                    Query.query(Criteria.where("entryId")
                            .is(behaviorEntry.getId())
                            .and("articleId").is(dto.getArticleId())),
                    Update.update("count", apReadBehavior.getCount() + 1)
                            .set("updateTime", new Date()), ApReadBehavior.class);
        } else {
            //5. 不存在  创建阅读行为 并初始化count字段值为 1
            apReadBehavior=new ApReadBehavior();
            apReadBehavior.setCount((short)1);
            apReadBehavior.setEntryId(behaviorEntry.getId());
            apReadBehavior.setArticleId(dto.getArticleId());
            apReadBehavior.setCreatedTime(new Date());
            mongoTemplate.insert(apReadBehavior);
        }
        //发送阅读行为消息，用于文章行为汇总数量，更改文章热度
        NewBehaviorDTO newBehaviorDTO = new NewBehaviorDTO();
        newBehaviorDTO.setType(NewBehaviorDTO.BehaviorType.VIEWS);
        newBehaviorDTO.setArticleId(dto.getArticleId());
        newBehaviorDTO.setAdd(1);
        rabbitTemplate.convertAndSend(
                HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE,
                JSON.toJSONString(newBehaviorDTO)
        );
        log.info("成功发送 阅读行为 消息内容：{}",newBehaviorDTO);
        return ResponseResult.okResult();
    }
}
